Geology Notes April 19
Geology Notes April 19 GEO 101
Popular in Dynamic Earth
Popular in Geology
This 4 page Class Notes was uploaded by Carter Cox on Wednesday April 20, 2016. The Class Notes belongs to GEO 101 at University of Alabama - Tuscaloosa taught by Keene in Spring2015. Since its upload, it has received 25 views. For similar materials see Dynamic Earth in Geology at University of Alabama - Tuscaloosa.
Reviews for Geology Notes April 19
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 04/20/16
Oceans and Coasts Urbanization - Increased paved areas - Building in floodplains - Pollution Agriculture - Increase sediment in streams - Change the stream chemistry o Fertilizers o Animal waste - Ecosystem change Dam Construction - Changes ecosystem o Migrating fish o Sediment load o Nutrients - Flood control o Positive and negative Overuse- our water - Central Arizona project canal - Los Angeles canal Ocean Floor Features Continental Shelf Continental Slope Abyssal Plain Seamounts Canyons (underwater) - Rivers cut into sediment Continental Margins - Passive - Active - Makes different shorelines Water - 3.5% o Halite, gypsum o Dense (how salty it is) o Salinity depends on location and temperature - Temperature o Latitude o Depth Currents - Flowing water in defined area o Surface o Deep Surface Currents - Driven by wind/ affected by Coriolis effect Deep Currents - Down welling - Upwelling - Caused by o Density (thermohaline circulation) Temperature Salinity Tides - High and low tides - The larger tidal bulge is on the side closer to the moo - Smaller tide on the other side of earth opposite of the moon - Tidal reach Waves - Energy moves forward - Water stays put Open ocean waves - Energy moves forward - Water stays Breaker - Friction between wave and ocean floor Wave Refraction Long shore Current - Costal Landforms Beach - Near shore - Intertidal zone - Backshore - Dune - Some beaches grow - Other erode Beaches: barrier islands - Sand islands - Always changing Tidal Flat - High Tide- covered by water - Low Tide- exposed Rocky Coast - Embayment - Headland - Always Changing Fjords - Glacial valley - Flood after glaciers melt Coastal Wetland - Shallow Water - No Wave Action - Temperate climate o Salt marsh - Subtropical climate o Mangrove swamp Coral Reef - Shallow, warm - Grows until conditions change - Erodes into coral sand Estuaries - Ocean rises into river valley - Mix of fresh and salt water What determines type of coast? - Tectonic Settling - Sea level - Sediment Supply - Climate Human Interaction with the Coast - 44% of the world population lives less than 150 km from coasts - 53% in US - Coasts always changing - What does this mean? Sea Level Rise - Only a matter of Time Beach Erosion - Groin- barrier built to keep sand from eroding
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'